Number of streamflow gauges in the Pacific Islands region, 1900-2010

Figure 2.9 In the Pacific Islands, the number of continuously operating streamflow gauging stations has been steadily declining since the 1960s and 1970s, which parallels the decline of other essential climate variable monitoring networks in the region.  Hawai‘i has been fortunate to have streamflow records with about a century of data, although recent financial cuts are threatening even these essential networks. (Figure courtesy of Delwyn Oki.)